baber/WOPTO huggingface dataset:
Patent GB-515959-A (GB)
Title: Production of sheet metal radiator sections
IPC: B21D53/04
Filed: 1938-06-16
Abstract: 515,959. Making radiators. BINDER, H. G. June 16, 1938, No. 17926. Convention date, June 16, 1937. [Classes 83 (ii) and 83 (iv] Stamping. - Radiator elements are stamped from sheet metal in halves that are welded together round flanges e and along stiffening ribs d. The sheets may be 1À5 m.m. thick or less and the first stamping brings the blank from the chain lines in Fig. 2 to the form shown in dotted lines in Figs. 3, 4, 5 the drawing being deep but with comparatively large radii of corvature. The section is brought to the finished form Figs. 4 and 5 in one or more further operations that involve little or no stretching of the metal.
Patent GB-530839-A (GB)
Title: An improved method of and means for dispensing flavouring or colouring materials or both
IPC: A23L27/00
Filed: 1939-06-20
Abstract: 530,839. Flavouring and colouring food. BATKIN, M. T., and ALEXANDER, S. F. June 20, 1939, No. 17957. [Class 49] In the method of dispensing flavouring or colouring materials or both in readily controlled quantities by enclosing them in capsules soluble in the food to be flavoured or coloured, the material contained within the envelope is rendered more hygroscopic than the envelope, so as to prevent the latter from being dissolved by the contained material during storage before use. The flavouring or colouring material may be in the form of an emulsion to which a colloid, such as gum tragacanth in a finely ground condition, is added. The finely ground colloid may be previously mixed with a small quantity of an edible oil to facilitate its incorporation in the emulsion. A flavouring essence capable of being held for long periods in a gelatine and glycerine capsule envelope is composed of an essential oil or other natural or synthetic flavouring that has been emulsified with glucose, sugar syrup or other saccharine substance, and gum tragacanth or other colloidal gum, and a small proportion of malt extract or lecithin may be added as an emulsifying agent. A small proportion of propylene glycol or other hygroscopic solvent may be mixed with the flavouring material before the emulsifying step. For example, raspberry extract is mixed with 5 per cent of propylene glycol and emulsified with a sufficient quantity of an aqueous solution of glucose containing about 25 per cent of malt extract, to produce a fluid of syrup-like consistency, which is charged into envelopes composed of gelatine and glycerine. 5 per cent of an edible aniline dye may be added to the above material before emulsification.
Patent GB-255490-A (GB)
Title: Improvements in or relating to electrodes for the electric purification of gas
IPC: B03C3/41
Filed: 1926-07-17
Abstract: 255,490. Siemens - Schuckertwerke Ges. July 18, 1925, [Convention date]. Addition to 237,262. [Class 1 (i), Chemical processes &c.]. Expanded metal.-An electrode for a gas purifier consists of expanded metal from which sections have been removed so as to leave projecting stumps. The sections 2 removed may be such as to produce openings of two or more times the original spacing of the mesh.
Patent GB-783323-A (GB)
Title: Constant flow control valve
Inventor: BRANSON CHARLES DAVID
IPC: H01J21/02
Filed: 1955-06-21
Abstract: 783,323. Valves. ROBERTSHAW-FULTON CONTROLS CO. June 21,1955 [Sept. 8, 1954], No. 17978/55. Class 135. A valve for maintaining a substantially constant flow of fluid comprises a spring disc 40 bent about a diameter and secured at its centre on the upstream side of an orificed seating plate 34. As the pressure of the fluid flowing in the direction of the arrow A increases the disc begins to flatten out, commencing adjacent the bend line and progressing towards the edges.
Patent GB-277464-A (GB)
Title: Machine for grinding the surface of metal sheets
IPC: B24B7/12
Filed: 1926-07-20
Abstract: 277,464. Martin, W. E. July 20, 1926. Flat extended surfaces, polishing. -A machine for polishing a metal sheet has a longitudinally reciprocating table a with a recessed top c to contain liquid in which the sheet is clamped and a rotating bob s which is reciprocated transversely of the table. This is supported by springs f and guide pins a from a carriage e which is reciprocated on rails h by a rack e<2>, reducing gearing r<2> and open and crossed belts p. The bob is rotated by a pulley t, Fig. 2, and reciprocated by a crank v, eccentrics u<2>, and pulley u. The shaft k carrying the bob turns in bearings I on brackets m which are adjusted on slides o, n by screws w and bevel gearing x.
Patent GB-613562-A (GB)
Title: Improvements in or relating to methods and plants for the efficient extraction of the active constituents in barks, aromatical vegetables and like organic substances
IPC: A61K8/97
Filed: 1946-06-17
Abstract: 613,562. Therapeutic extracts. HELLER, J. June 17, 1946, No. 18101. [Class 81(i)] Apparatus for macerating and fermenting aromatic vegetables, barks, &c. and extracting active constituents for electrotherapeutic baths, comprises a plurality of maceration vats and an additional leaching vat, all provided with steam heating coils, a pump for transferring liquor from each vat to a storage tank, apertured sheet metal baskets to contain the materials treated, and an overhead rail and tackle arranged above the vats for transferring the baskets from the maceration vats to the leaching vat. The vats may be of wood or concrete and may be provided with hot and cold water lines. Parallel shafts 20, 21 rotated syncronously in opposite directions by a motor 26 and carrying cams 27, 28 for vertically reciprocating the baskets may be provided in the bottom of the leaching vat 9. Stops may be provided in the corners to prevent the basket knocking against the steam coil 10. The baskets may have a sliding bottom for discharge, rollers mounted on their vertical walls to reciprocate in metal runways 31 inset in the walls of the vat, reinforcing members provided with rollers for bearing on the cams and may be tiltably mounted between supporting legs or supported by hooks at the four corners. An example describes fermentation for five days and leaching for 2-3 hours at boiling point.
Patent GB-1113397-A (GB)
Title: Stabilised electrical control circuit
IPC: G05F1/44
Filed: 1966-04-26
Abstract: 1,113,397. Supply systems for gas discharge lamps. GENERAL ELECTRIC CO. 26 April, 1966 [24 May, 1965], No. 18136/66. Heading H2H. [Also in Division G3] A load 1, e.g. a gaseous discharge lamp, is supplied from an A.C. source 2 by way of backto-back thyristors 7, 8 which receive firing , pulses from a circuit 23 comprising an adjustable resistor 10 connected in series with a capacitor 11, a glow lamp 12 connected across the capacitor 11 and a pulse transformer 9, a current-dependent voltage derived from a reactor 6 in series with the load being applied to the circuit 23 by way of an integrating circuit 18, 19; when glow lamp 12 becomes conductive as a result of voltage build-up on capacitor 11, the capacitor partially discharges and a firing pulse, of a particular duration and at a particular time in the half-cycle, is applied to the thyristors 7, 8, the appropriate one of which fires to supply current to the load. Thus, the power supplied to the load is controlled in dependence upon current variations, by automatic regulation of the firing angle of thyristors 7 and 8. A further current-dependent feedback voltage derived from reactor 6 is applied to a lamp 30 associated with a photosensitive device 15 connected to the circuit 23, and this feedback also helps to stabilize the load current. The lamp associated with the device 15 may be itself responsive to a further photo-sensitive device responsive to variations in the light output of a discharge lamp constituting the load 1 so that the firing angle of the thyristors 7, 8 is controlled to keep the light output at a constant value (Fig. 3, not shown). And an embodiment featuring compensation for varying input voltage and a photo-electric circuit for automatically turning the lamp on and off at a desired ambient light level is described with reference to Fig. 4 (not shown).
Patent GB-1164241-A (GB)
Title: Microscopes having Interchangeable Optical Accessories.
IPC: G02B21/00
Filed: 1967-04-20
Abstract: 1,164,241. Optical microscopes. ERNST LEITZ G.m.b.H. April 20, 1967 [April 27, 1966], No.18159/67. Heading G2J. To adapt a microscope for different duties a number of interchangeable optical accessories are provided such as phase contrast devices, automatic exposure meters and microphotographic devices, each accessory being mounted in an elongated housing 3 one longitudinal side of which forms a plane bottom surface 5 which is detachably mounted on a plane table surface 1 of the microscope. As shown a stand 2 supporting the usual microscope features including the eye-piece has a plane surface 1 with a coupling 4, e.g. a bayonet catch, at one end to engage housing 3, the latter having rounded projections 6, 6a, at the opposite end. In the optical axis 8 is positioned a doublesided 45 degrees reflector 7 which reflects the beam from the objective round a closed loop, including the phase contrast or other optical members and a number of reflectors such as 9-12, and back to the opposite side of the 45 degrees mirror 7 for reflection into the eye-piece. For rapid removal of the accessory from the optical path of the microscope, the mirror 7 is mounted on a manually operated slide together with an intermediate optical system 15 which allows the beam from the objective to pass straight through system 15 to the eye-piece.
Patent GB-477264-A (GB)
Title: Uniting structural elements
IPC: E04C3/04
Filed: 1937-06-30
Abstract: 477,264. Making section-bars; uniting by fusion. DORTMUNDER UNION BRUCKENBAU AKT. - GES. June 30, 1937, No. 18173. Convention date, Nov. 5, 1936. [Classes 83 (ii) and 83 (iv)] [Also in Group X] A section-bar comprises a flange 1 having a rib 3 with a right-angled recess at its upper edge and sloping sides 7, and a webplate 4 of width equal to or greater than that of the recess and having a tapered edge to interfit the recess, the parts being welded together at 5 and 6. The angle between each sloping side 7 of the rib and the lateral face of the web is greater than a rightangle, thus allowing the use of thick electrodes during welding and clear permeation for X-rays during testing.
Patent GB-578252-A (GB)
Title: Improvements in or relating to pen-and pocket-knives
IPC: B26B1/06
Filed: 1944-09-25
Abstract: 578,252. Pen and pocket knives. MURFIN, W. H. Sept. 25, 1944, No. 18230. [Class 30] A pen or pocket knife consists of two scales 6 integrally united along one edge of each by a strip 7 of the same material, such as a plastic of the synthetic resin type or metal, and has one blade 11 pivoted on a rivet 12, the other end of the handle being closed by a continuation 8 of the strip 7 which is provided with a recess 9 to engage one end of the spring 10, the other end coacting with the tang of the blade 11. A lug 13 may be provided on the spring to engage a recess 14 in the base wall of the handle. In a modification two blades are fitted each end of the spring engaging the tang of one blade.
Patent GB-1148315-A (GB)
Title: Improvements in or relating to the extraction of selenium compounds
IPC: C07C51/48
Filed: 1966-04-26
Abstract: 1,148,315. Unsaturated acids. SOC. D'ELECTRO-CHIMIE D'ELECTRO-METALLURGIE ET DES ACIERIES ELECTRIQUES D'UGINE. 26 April, 1966 [26 April, 1965], No. 18262/66. Heading C2C. [Also in Division C1] Unsaturated acids are prepared from unsaturated aldehydes (e.g. acrolein, methacrolein, crotonaldehyde, α-chloroacrolein, sorbic aldehyde, ethyl 2-hexene 2-aldehyde, tiglic aldehyde and tetrahydrobenzaldehyde) by the action of H 2 O 2  or another peroxide in an organic medium and in the presence of a selenium derivative, and subsequently extracting the oxidized selenium derivatives using an aqueous solution of an inorganic salt or salts, whereby almost all the unsaturated acid remains in the organic medium. Example 1 describes the oxidation of acrolein to acrylic acid using H 2 O 2  with selenious anhydride in t-butanol.
Patent GB-896964-A (GB)
Title: Improvements in clamps for tubular structures
IPC: E04G7/24
Filed: 1959-05-28
Abstract: 896,964. Clamps. RAMSDEN, C. May 28, 1959 [June 12, 1958; Feb. 17, 19591, No. 18280/59. Class 44. A clamp for holding together a pair of tubes 11 or the like comprises a pair of oppositely positioned clamping members 12 with a part cylindrical recess 13 in each, a boss 17 on each member bored normally to the length of the recess, a bolt 15 fitting slidably through the bores to support the clamping members in the direction of the axis of the bolt, a single washer 14 positioned on the bolt between the clamping members and having opposite faces each comprising a surface inwardly curved to the same radius as that of the recess in the adjacent clamping members 12 to eventually support the pair of tubes or the like and nuts 16 on each end of the bolt to force the clamping members towards the washer. The washer 14 may be screw threaded on to the bolt or it may be welded thereto and the curved surfaces of the washer in the arrangement according to Figs. 3 and 4 (not shown) include part cylindrical surfaces to provide surface instead of line contact with the tubes. The tube-contacting surfaces of the clamp may be serrated or have rubber bonded thereto.
Patent GB-654154-A (GB)
Title: Improvements in or relating to frame-synchronization in television receivers
IPC: H04N5/10
Filed: 1947-07-11
Abstract: 654,154. Pulse discriminating circuits. PHILIPS LAMPS, Ltd. July 11, 1947, No. 18416. Convention date, July 15, 1946. [Class 40 (vi)] [Also in Group XL (b)] In a television receiver in which the frame synchronization signals comprise a long pulse interrupted by short pulses preferably at the line frequency, or a multiple thereof, and in which the synchronizing signals after integration are fed to a control electrode of an electronic discharge device which is also controlled by the original synchronizing signals to deliver a control voltage for triggering the frame time-base generator, a voltage derived from the time-base generator is fed back to the electronic discharge device in such a form as to ensure that only the first of said interruptions in each frame synchronizing signal shall be effective in causing the said discharge device to deliver a frame synchronizing impulse. A composite signal of the form shown by v<SP>1</SP> of Fig. 2, is fed to the grid 1 of a valve 2 and through a phase reversing device 3 and an integrating network 4 to a second control grid 5 so that the output from the anode 6 would be as indicated by v<SP>3</SP>, the output being differentiated by a device 7 to form a number of pulses v4 having positive peaks capable of triggering the frame saw-tooth generator. A saw-tooth wave as indicated by v<SP>5</SP>, derived from the saw-tooth generator, is modified by a condenser 9 and resistance 10 to the form indicated by v<SP>6</SP> and is fed to the control grid 1 of the valve 2 so that with the combined grid control voltage, as indicated by v<SP>1</SP>, solely a single impulse corresponding to the first interruption in the frame impulse is passed to the network 7 and the frame time-base generator. The Specification as open to inspection under Sect. 91 includes a modification, Fig. 3, (Cancelled), in which a voltage similar to v<SP>1</SP> is applied to a grid 12 of the hexode part of a double valve 13, is reversed in phase and integrated in combination with a condenser 16 and is applied via a condenser 18 and resistance 19 to act as a control voltage, the anode 20 of the triode part of the discharge tube, the voltage on the anode 20 being applied to a circuit controlling a frame saw-tooth generator. The voltage set up on the grid 23 is similar to that indicated by v<SP>1</SP> but reversed in polarity so that when v<SP>1</SP> becomes negative, pulses are sent from the anode 20 and will normally be similar to those indicated by the curve v<SP>9</SP>, Fig. 2 (Cancelled). A voltage from the pentode 28 forming the final valve of the frame time-base generator is differentiated by condenser 27 and resistance 26 and a voltage similar to the form indicated by v<SP>6</SP>, but reversed in polarity, is applied to the grid 23 so that the triode part of the hexode becomes conducting and cuts off the output at the anode 20 after the transmission of the first interrupting pulse has triggered the frame generator. This subject-matter does not appear in the Specification as accepted.
Patent GB-676491-A (GB)
Title: Improvements in or relating to ribbon looms
IPC: D03D35/00
Filed: 1950-07-24
Abstract: 676,491. Ribbon looms. NAAMLOOZE VENNOOTSCHAP MACHINEFABRIEK BREDA VOORHEEN BACKER EN RUEB. July 24, 1950 [July 27, 1949], No. 18431/50. Class 142(ii) The slay 1 for a ribbon loom has one or more racks for driving the shuttles 3a, 3b by means of pinions 6, each rack consisting of a metallic toothed strip which at both sides has secured to it a strip 11 of plywood or other non- metallic material. Specification 676,490 is referred to.
Patent GB-667895-A (GB)
Title: Improvements in and relating to solders for ceramics
IPC: C04B37/02
Filed: 1950-07-24
Abstract: A solder for forming a fluid-tight seal between ceramic surfaces or between ceramic and metal surfaces has the following composition: Pb, 5-20 per cent; In, 10-30 per cent; Sn, the remainder.  The parts to be joined are assembled, heated to a temperature approximately equal to the melting point of the solder which is then applied in molten form.
Patent GB-1135537-A (GB)
Title: Device for automatically recording blood settlings
IPC: G01N15/05
Filed: 1967-04-21
Abstract: 1,135,537. Photographic apparatus. H. JANSEN. April 21, 1967 [May 3, 1966], No. 18562/67. Heading G2A. [Also in Division G1] An automatic device to facilitate readings of the sedimentation of blood corpuscles in a tube after stated times, such as 1 and 2 hours respectively, comprises crossed light tunnels 2, 3 Fig. 1 each of which is, at one end, adjacent a lightsensitive material 8 and, at its other end, opens into a chamber 4, 5, containing a light source 6, 7, so that when the sedimentation tube 10 is placed at the inter-section 9 of the tunnels and a programming device in chamber 25 is switched on, the lamps 6, 7 are successively illuminated at the required times and the successive levels are consequently shown on the same light-sensitive material 8. Lenses 22, 24 may be provided to focus the light and a scale 17 provided in an additional tunnel 18. The light-sensitive material 8 may pass from a reel (11), Fig. 2 (not shown) in a chamber (12) over a guide (14) to be pressed against the tunnel ends by a pressure plate 16 which also houses a spring puncher 21 to indicate the point at which the light-sensitive strip should be torn off when pulled from the housing. The programming motor 26, controlling a disc 28, is started by a switch (34), Fig. 3 (not shown), when the tube 10 is inserted into the channel 9. After an hour a contact arm (38) on disc 28 makes, and then breaks, a circuit containing lamp 6, after a second hour a second contact arm (40) makes and breaks a circuit containing lamp 7 and immediately afterwards a third contact arm (39) stops the programming motor 26 and disc 28. If more than two exposures are required three or four light tunnels may be provided and polarising films may be interposed between the light source and lightsensitive material 8 to prevent light from one tunnel exposing through another tunnel.
Patent GB-458804-A (GB)
Title: Improvements in and relating to mats
IPC: A47L23/24
Filed: 1935-06-28
Abstract: 458,804. Mats. NUWAY MANUFACTURING CO., Ltd., and WRAY, J. H., Coalport, Shropshire. June 28, 1935, No. 18593. [Class 142 (iv)] A mat built up of interlocked transverse and longitudinal strips has strips, such as 2, of greater height than width and having spaced pairs of recesses 5 in their upper and lower edges, these strips being passed side uppermost through corresponding slots 3 in the strips 1 extending in the other direction, and then turned upright. The strips 1 are cut in the planes of the upper and lower sides of the slots 3 to form tongues 4, which are deflected during the passage of the recessed strips 2, and return to alignment when the recessed strips are turned upright. Both sets of strips may extend from side to side of the mat, or one set may consist of chain links. Some of the strips of both sets may have spaced single recesses, recesses in one set corresponding to those in the other set. The strips may have arched upper surfaces, associated if desired with arched lower surfaces or transverse cavities, to give resilient tread portions. In the mat the strips of a set need not be parallel, and may be sinuous. The strips may be of rubber, rubber and rubberized fabric, leather, fibre or other material.
Patent GB-957891-A (GB)
Title: Fluorinated steroid compounds and process for their production
IPC: C07J7/00
Filed: 1960-05-26
Abstract: The invention comprises 5a -bromo-6b -fluoro-steroids of the general formula: <FORM:0957891/C2/1> (wherein X1 is hydrogen, fluorine, chlorine or bromine, Z is hydrogen, keto, or b -hydroxy; R12 is hydroxyl, keto or ethylenedioxy; R13 is hydrogen, hydroxyl, or methyl; and R14 is b -OR15, a -R16; b -COCH3, a -H; b -COCH3, a -OR15; b -COCH2OR15, a -H; b -COCH2 OR15, a -OR15; R15 being hydrogen or a hydrocarbon carboxylic acyl group of from 1 to 12 carbon atoms; and R16 being hydrogen or lower alkyl), together with a process for the production of 5a -bromo-6b -fluoro steroids by treating a steroid having a double bond between C5 and C6 with HF in the presence of positive bromine ion, preferably in the presence of a proton acceptor, e.g. a hydrocarbon ether or ketone.  The preferred source of positive bromine ion is an N-brominated hydrocarbon amide or imide, e.g. N-bromosuccinimide, and the reaction may be conducted in an organic solvent, e.g. a saturated hydrocarbon or halogenated hydrocarbon. The process is applicable to 19-nor steroids. Dehydrobromination of the products and isomerization at C6, e.g. by treatment with dry HCl in glacial acetic acid yields the corresponding D 4-6a -fluoro steroids.  Detailed examples illustrate the preparation of 5a -bromo-6b -fluoro-androstane-3b , 17b -diol, 5a -bromo-6b -fluoro-pregnane-3b -ol-20-one, 5a -bromo-6b -fluoropregnane-3, 20-dione, 6a -fluoro-progesterone, 5a  bromo 6b -fluoro-16b -methyl-19-nor-androstane-3b , 17b -diol and its catalytic hydrogenation to 6b -fluoro-16b -methyl-19-nor-androstane-3b , 17b -diol. Other specified products are listed.
Patent GB-334970-A (GB)
Title: Improvements in, or relating to, apparatus for lubricating axles
IPC: B61F17/26
Filed: 1929-06-18
Abstract: 334,970. Imeson, A., Finch, A. H., and Bond, J. R. June 18, 1929. Force-feed lubricating.-Fixed apparatus for lubricating the axles of colliery tubs and the like comprises an oil reservoir 1 provided with a cover plate through which depends a cylinder 3 containing a plunger 9, which is normally pressed upwards by a spring 31 disposed within the cylinder, and which is formed integral with a curved bar 17 adapted to be engaged by passing axles so as to eject oil through a passage 14 in the plunger, the ends of of the bar 17 being formed with recesses 19 which receive leaf springs 20 secured to the plate 2 by bolts 24 passing through their T-shaped ends 23. The lower ends of the cylinder and plunger are provided with screwed non-return valve fittings 6, 12, the plunger fitting 12 having an extension 13 working in a cylinder 8 upstanding from the cylinder fitting 6 and forming the pump chamber. The upper end of the cylinder 3 is provided with a flange 4 resting on the plate 2 and secured thereto by means of a slotted plate 25 bolted to the plate 2. The upper end of the plunger 9 is reduced so as to provide a shoulder 29 which co-operates with the plate 25 to limit the upward movement. The wall of the cylinder 3 is provided with a port for the passage of oil to and from the reservoir. Grooves 34 on the crown of the bar 17 radiate from the hole 14 for the return of surplus oil to the plate 2, whence it percolates through screens 35 into the reservoir.